Device for cutting or trimming wallpaper and the like



A A. GELLEFF 2,044,426

DEVICE FOR CUTTING OR TRIMMING WALLPAPER AND THE LIKE June 16, 1936.

Filed April 19, 1935 2 Sheets-Sheet l WVF/VTUI? .19. 9. GellW'.

June 16, 1936. GELLEFF I 2,044,426

DEVICHFOR CUTTING OR TRIMMING WALLPAPER AND THE LIKE Filed April 19,1935 2 Sheets-Sheet 2 I l l I l l l l l I l I l l I I Patented June 16,1936 DEVICE FOR CUTTING 0R TRIMMING WALLPAPER AND THE LIKE ArthurAlexander Gellefl", Isleworth, England Application April 19, 1935,Serial No. 17,342 In Great Britain April 20, 1934 '6 Claims.(Cl.'16483") This invention relates to thetrimming or cutting appliancesfor paper and the like, especially for use in. trimming edges ofwallpaper.

The object of the present invention is to provide an improved appliancewhich will be durable, simple to use and construct, andmay be cheaplymanufactured and operated, also providing an adjustable andremovable.blade which can be renewed at extremely low cost when necessary.

Other objects provide a means to smooth out kinks and irregularities inthe paper .selvedge to be cut,..and guide theblade whendrawn along theedge of .paper. The length .of the channel zbottom also bridging overany damaged selvedge, thus; preventing .the'cutting blade following thedistorted outline where this is less in lengththan the guide. Thebladecan be placed in four different. positions. before it need be scrapped;furthermore the. device cannot spoil the main body of. the paper ifmisused for the blade can only run outward and not inward. The appliancecan also;be.used:by...a leftor right-handed person without alteration.

With the above object in view I construct a handle .in which adeepgroove .or channel of narrow limits in height is formed, the bottom of-whichguidesthe blade when drawn or pushed .along edge of paper, the.top and bottom members of this groove also smoothing outanyirregularities in the paper before cutting; also-holding thepaperfairlyfirmly when the blade first strikes the .paper. -.Theidevice hasalso a block, an adjustable slide and: blade holder combined, andopeningor series of slots in the handle to allow. the blade to projectthrough.

- In the drawings; Figure 1 is a front elevation.

Figure 2 is a. plan view of the-complete trimmer. Figure 3 is an endview showing the bottom of the "groove employed for guiding the bladealong the paper edge.

-F-'igure 4 is a rear elevation.

Figure 5 is a plan View of the handle and showing the slots.

Figure 6 is an end view showing the blade holder set at an angle.

Figure '7 is a plan view of the handle cut and shaped before bending.

Figure 8 is a front elevation of the handle showing the alternativeshape of the blade bracket.

Figure 9 is a plan view of the combined slide and blade holder beforeshaping.

Figure 10 is a perspective view.

Figure 11 shows the blade cover.

. Figurelz is a perspective view of the trimmer with all bendingoperations reversed.

Figure 13 is .a perspective view of the modified trimmer.

.Like numerals of reference designate like parts throughout the severalviews.

Referring to the drawings .a is the handle,

whi'clrcis..:sheet 'metal: cut and shaped as shown at Fig. 7, andbentupon itself to form the groove 12. Upon the top member I of this groove2. blockjs formed asshown at 0 into which a screw 4' is inserted toprovide .a fixing for the adjustable blade holderby .meansof the .wingnut h. This block does not continue right across the top member butsufii'cient material is cut away to give the blade holder.anypredetermined measure of adjustment, .and is to provide a runner forthe adjustable slide.

:The adjustable .slide d .isxconstructed in sheet metal (Fig.9) andshaped to fit the block, a slot 1/ being provided for adjustment. Tothis slide iswformed at right angles .a blade holder. -e which holds theblade edge at a cutting angle of 45 degrees to thepaper, butthis angleis not critical for any angle between 10-170 degrees could be used. Ahole is provided in the approximate centre of this blade holder togetherwith two projections .x' to engage in the holes of the 3 holed safetyrazor blade. The blade j is fixed to the holder by means of a screw andknurled ut :0, "the blade cover g Fig. 11 first being added beforescrewing 0n the knurled nut.

The opening 7c in the handle through which the :blade passes can beeither a complete cutout, or a series of slots as shown at m in Fig. 5,the webs 11. supporting the paper each side of the blade. On theunderside of the handle a further blade protector is formed p from thematerial iorced down when constructing the opening in the bottom member.Figs. '7, 8, 10, 12,13 show an alternative fixing and shape of thisblade protector.

A further blade holder 42', e will also be manufactured, Fig. 6, whichgives a bevelled or mitred edge to the paper for the purpose of formingan invisible joint when the paper is attached to the walls. Thismodification is substituted for d of Figures 1 to 5 when it is desiredto cut the paper with said bevelled edge.

In Fig. 5 the handle is shown with the blade and blade holder removedfor the purpose of exposing the slots m which are cut into the top andbottom members of the handle.

It should be noted that the groove in the handle is not to exceed inheight more than double the average thickness of the paper to be cut,particularly at the blade end.

The method of using the device is as follows: The blade is first set togive the required width of cut by means of the adjustable slide and wingnut; the device is then slipped on to the edge of the paper until thepaper edge is in contact with the guide formed by the bottom of thegroove 1); the device is then gently drawn along the edge of the paper,care being taken to ensure that the paper is always in contact with theguide s. It is also intended to reverse all bending operations on thecut shapes Figs. 7 and 9 of the handle, block and combined slide andblade holder, also the projections for steadying the blade, the trimmerwould now appear as shown in Fig. 12 with the combined slide and bladeholder shown at 3:, and when used is pushed along the selvedge with theblade and associated parts at the rear of the trimmer.

The trimmer shown in Figs. 1, 2, 4 and 10 is designed to pull along theedge of the paper.

Generally speaking, the invention can be considered as a handle memberof channel section having an adjustable blade fitted at or near the endof the channel, and although I have described the construction of thisdevice as manufactured in sheet metal, it must not be considered to beso limited as a suitable handle could be formed by channelling in. wood,or any other solid material such as die casting of metal alloys, ormoulded in a substance known under the registered trade-mark Bakelite,orthe like.

A modification of the invention may consist of having the blade fixed togive one width of out only, say of an inch, this being the average widthof the wallpaper selvedge, or the blade could be fixed, and the bottomof the groove which is the blade guide, could, by the addition of astrip of material be made adjustable.

In the foregoing description the block 0 was placed in line with theopening is in the handle and thus restricted the movement of the bladeholder across the handle. A modification consists of placing the block0' in front of the opening, and reshaping the combined slide and bladeholder to that shown at p in Fig. 13. The blade will then be free totravel acrossthe total width of the top member. v By this invention Iprovide a very simple construction whereby the blade edge can be usedin. four different positions before it is necessary to scrap same, alsoproviding means of easily adjusting the blade, also supplying anadditional blade holder when a mitred edge is desired.

What I claim is:-

1. An edge trimmer for paper and like materials, comprising a base partformed of a single sheet of material bent upon itself serving as ahandle and guide, a transversely adjustable slide carried by said basepart, and a blade rigidly carried by said slide with a cutting edgeinclined to and projecting into the guide to intersect the plane ofmaterial therein.

2. An edge trimmer for paper and like materials, comprising a base partformed from a single sheet of material bent back upon itself, the innerpart of the bend serving as the edge of a guide formed by the base; atransversely adjustable slide carried by said base part, and a bladerigidly carried by said slide with a cutting edge inclined to andprojecting into the guide to intersect the plane of material therein.

3. An edge trimmer for paper and like materials, comprising a base partformed from a single sheet of material bent back upon itself, the innerpart of the bend serving as the edge of a guide formed by the base, theupper folded back part of said base having cut away adjacent the fold apiece of material in order to provide a space through which the blademay pass to enter the guide; a transversely adjustable slide carried bysaid base part and a blade rigidly carried by said slide with a cuttingedge inclined to and projecting into the guide to intersect the plane ofmaterial therein.

4. An edge trimmer for paper and like materials, comprising a base partformed from a single sheet of material bent back upon itself, the innerpart of the bend serving as the edge of a guide formed by the base, theupper folded back part of the base having a piece cut away adjacent thefold through which the blade may pass to enter the guide, and the lowerfolded back part of the base having a bowed or undulating part providedin register with the opening in the upper base part serving as the guidefor that part of the blade projecting through the plane of the guide orhandle.

5. An edge trimmer for paper and like materials, comprising a base partformed from a single sheet of material bent back upon itself, the innerend of the, bend serving as the edge of a guide formed bythe base, theupper folded back part of the base having a piece cut away adjacent thefold to provide an opening through which the blade may pass to enter theguide, the materialadjacentthe cut-away part being bowed upwardly toprovide a carrier for the transversely adjustable slide, said bowed partcarrying adjustable means for retaining the slide in engagementtherewith.

'6. An edge trimmer for paper and like materials, comprising a base partserving as a handle and guide, said base part being formed of a singlepiece of material and bent upon itself, a transversely adjustable slidecarried by said base part and a blade rigidly carried by said slide witha cutting edge inclined to and projecting into the guide to intersecttheplane of material therein, said slide and blade-carrying part beingformed from a single pieceof material, the blade-carrying part beingdisposed in a plane intersecting that of the remainder of the slide.

ARTHUR ALEXANDER GELLEFF.

